Card Number Validation in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 676th scpchicken 🇵🇼 464 139 16ms 6 Oct 2024 677th NanduBC 461 140 10ms 1 Oct 2024 677th jmerle 🇳🇱 461 140 10ms 10 Jan 2025 677th RobertHoeh 461 140 9ms 3 Mar 2025 677th smilesformiles3 461 140 16ms 12 Jun 2025 677th artem-aramma 461 140 17ms 18 Jun 2025 682nd snoozingnewt 🇺🇸 460 96 3ms 12 days ago 683rd Yewzir 🇧🇪 460 171 12ms 26 Dec 2024 684th Jacob385 460 202 298ms 2 Oct 2024 685th madex 🇩🇪 459 104 36ms 2 Oct 2024 686th FranklinJiaChen 458 141 9ms 2 Oct 2024 687th brimstonetrader 455 142 10ms 17 Oct 2024 687th codewrite 🇬🇧 455 142 10ms 5 May 2025 687th RobGLambert 455 142 19ms 8 Jun 2025 690th snoozingnewt 🇺🇸 454 149 4ms 12 days ago 691st snoozingnewt 🇺🇸 453 124 213ms 12 days ago 692nd dokutan 451 63 2ms 26 Nov 2024 693rd GeneralFabian 451 143 9ms 9 Dec 2024 693rd CutSandstone 451 143 9ms 30 Jan 2025 693rd kistlerf 🇨🇭 451 143 17ms 19 May 2025 696th snoozingnewt 🇺🇸 451 176 2ms 12 days ago 697th varhammer 🇷🇺 450 223 12ms 23 Feb 2025 698th IISResetMe 449 104 494ms 27 Mar 2025 699th hiichbindermax 448 144 16ms 2 Oct 2024 699th mathisfun271 448 144 9ms 14 Oct 2024 699th bob-th 448 144 10ms 22 Oct 2024 702nd dokutan 445 109 10ms 19 Oct 2024 703rd Flekay 🇩🇪 445 145 11ms 10 Jul 2025 704th grey0ut 444 105 368ms 11 Jan 2025 705th croc54 442 146 9ms 15 Dec 2024 706th MyXoToD 🇩🇪 441 146 9ms 26 May 2025 707th PyryL 🇫🇮 439 147 10ms 1 Mar 2025 708th mbittner20 436 148 10ms 13 Oct 2024 709th psaban 433 149 17ms 31 Jul 2025 710th KatieLG 🇬🇧 433 183 2ms 2 Oct 2025 710th StronkCheese2 433 183 2ms 2 days ago 712th dokutan 432 130 295ms 17 Oct 2024 713th KatieLG 🇬🇧 431 108 7ms 13 Oct 2024 714th Mabeloid 🇳🇴 431 133 549ms 2 Oct 2024 715th snoozingnewt 🇺🇸 430 111 36ms 12 days ago 716th jameswmccarty 430 150 9ms 5 Oct 2024 716th yousefalizadeh 430 150 10ms 23 Oct 2024 716th feherd 430 150 10ms 31 Oct 2024 716th TheZwierzLF 🇵🇱 430 150 10ms 17 May 2025 716th kadamkaustubh 430 150 10ms 6 days ago 721st snoozingnewt 🇺🇸 426 268 28ms 12 days ago 722nd adamnielson42 🇺🇸 425 152 10ms 6 Oct 2024 722nd voidgloom 425 152 10ms 22 Oct 2024 722nd omero-san 425 152 10ms 22 Sep 2025 722nd brochmann 🇸🇪 425 152 12ms 12 Oct 2025 726th MeWhenI 🇻🇦 424 143 6ms 2 Oct 2024 727th denisfouchard 422 153 11ms 21 Aug 2025 728th osNiko 🇧🇷 419 154 16ms 21 Aug 2025 729th FortuiteMan 🇫🇷 417 155 19ms 16 Oct 2024 729th celiendonze 🇨🇭 417 155 19ms 17 Oct 2025 731st Arkadios200 415 196 95ms 24 days ago 732nd Shotokhan 414 156 11ms 21 Sep 2025 733rd lhulinsky 411 157 10ms 21 Oct 2024 734th ThatAlo 409 158 9ms 9 Dec 2024 735th webmiche 406 159 10ms 11 days ago 736th dieggsy 406 247 21ms 10 Oct 2024 737th Mabeloid 🇳🇴 405 159 13ms 12 Oct 2024 738th snoozingnewt 🇺🇸 404 223 391ms 12 days ago 739th CheeseCake628 🇳🇴 403 160 97ms 5 Nov 2024 740th pres-abhisheksinha 401 161 10ms 8 Oct 2024 741st ibixina 399 162 9ms 13 Oct 2024 741st TheAtrossian 399 162 10ms 5 Jan 2025 743rd Ralac07 🇦🇺 397 162 11ms 3 Oct 2024 744th Maximizer02 396 201 11ms 1 Oct 2024 745th Vaekor 391 165 9ms 15 Dec 2024 746th ehulinsky 🇺🇸 384 158 5ms 2 Apr 2025 747th fischfood 384 176 4ms 22 Oct 2024 748th JesseNoEyes 🇺🇸 382 169 10ms 1 Oct 2024 749th c0d3-4-F00d 🇩🇪 381 184 2ms 9 Jan 2025 750th CheeseCake628 🇳🇴 380 151 453ms 27 days ago First Prev 676–750 of 814 Next Last